Carrier route record
DLSLC→BUR
Delta Air Lines · Salt Lake City to Burbank
- Flights
- 423
- Period
- September 2025 to August 2026
- Share of route
- 29%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Delta Air Lines.
Delta on SLC to BUR lands a B+, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 423 flights, with a median arrival 6 minutes early.
Set against the rest of the country, Delta's SLC to BUR record is 5 points better than the US average of 77.3%. That gap is worth roughly 51 fewer late arrivals for every thousand flights.
Key figures
On time
82.4%
Arrivals under 15 minutes late, of 421 completed flights
Avg delay
62 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
Whole route
87.5%
Every carrier on SLC to BUR, 1,457 flights
These figures cover 423 flights between September 2025 and August 2026. The median arrival is 6 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
Delta against every carrier on SLC to BUR
Delta flew 423 of the 1,457 flights on SLC to BUR, about 29% of it. Its 82.4% on time is 5 points worse than the route as a whole, which runs 87.5%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from SkyWest at 90.9% to Southwest at 76.3%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines | 939 | 90.9% | 60 min | 0.53% | A+ |
| Delta Air Lines (this page) | 423 | 82.4% | 62 min | 0.00% | B+ |
| Southwest Airlinesthin sample | 95 | 76.3% | 53 min | 1.05% | B |
Flight by flight
Delta flight numbers on SLC to BUR
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When Delta runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 423 flights.
- 5am–8am—
- 8am–11am88 flights87.5%
- 11am–2pm4 flights—
- 2pm–5pm1 flights—
- 5pm–8pm—
- 8pm–5am330 flights81.1%
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
The early departures do better, though not dramatically: 87.5% on time for the 8am–11am window against 81.1% for 8pm–5am. Worth taking if the schedule allows, not worth an extra connection. The 8pm–5am window is the busiest, with 330 flights scheduled in it.
Across the year
Delta on SLC to BUR through the year
December is the weak month at 68.8% on time, against 93.3% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. August was the busiest month here, with 59 flights.
Across the week, Tuesday is the strongest day at 87.5% on time and Sunday the weakest at 77.0%, a spread of 11 points.
Arrival by arrival
How late Delta on SLC to BUR runs when it is late
The 74 late arrivals split 25 under half an hour, 23 between 30 and 60 minutes, and 26 an hour or more.
- 15+ min early92 flights21.9%
- Within 15 min255 flights60.6%
- 15–29 min late25 flights5.9%
- 30–59 min late23 flights5.5%
- 1–2 hours late20 flights4.8%
- 2+ hours late6 flights1.4%
Scale runs 0% to 100%.
Share of 421 completed flights by arrival against schedule.
20 of 86 late departures made up the time and arrived on time, 23% of them. Only 8 left on time and still arrived late.
The worst days
Worst days for Delta on SLC to BUR
The latest arrival of the period was on 10 March 2026, 9 hours 51 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 March 2026 | 9 hours 51 minutes | Carrier |
| 3 January 2026 | 3 hours 3 minutes | Late-arriving aircraft |
| 24 April 2026 | 3 hours 1 minute | Carrier |
| 12 August 2026 | 2 hours 37 minutes | Carrier |
| 2 April 2026 | 2 hours 35 minutes | National Airspace System |
Delay causes
Why Delta runs late on this route
Carrier accounts for 65% of the 4,558 delay minutes carriers reported here, and the remaining four split what is left.
- 65%Carrier
- 25%Late-arriving aircraft
- 9%National Airspace System
- 1%Extreme weather
The largest share of delay minutes, 65%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,955 of the 4,558 delay minutes reported here. The split is drawn from 4,558 reported delay minutes.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
6.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The 574 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg is a different operation and performs like one: it runs 91.9% on time across 423 flights, 10 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 10 points of difference.
One caution: this is a thin sample. 423 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Delta on SLC to BUR
Put together: treat all of this as provisional. 423 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 82.4% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 421 completed flights over 12 months sit behind that.
Related
Where to go next
- SLC to BUR, every carrier
- Delta on BUR to SLC, the return leg
- SkyWest Airlines on SLC to BUR90.9%
- Delta Air Lines network-wide record
- Salt Lake City International (SLC) delay statistics
- Hollywood Burbank (BUR) delay statistics
- Worst months to fly in the US, ranked by the data
- How to read this site: grades, sample sizes, and honest caveats
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.